Machine for making barrel heads



Apr. 17, 192s.

1,452,011@ J. L. WALKER MACHINE FRMAKING BARREL HEADS Filed Dec. 19, 1922 4 Sheets-Sheet l pr. l?, 1923. 1,452,1M0 J. WALKER MACHINE FOR MAKING BARREL HEADS Filed Dec. 19.

4 Sheets-Sheet Apr. 1 7, 1923.

J. L. WALKER MACHINE FOR MAKING BARREL HEADS Apr. 17, 1923.

J. L. WALKER MACHINE FOR MAKING BARREL HEADS Filed Dec. 19 1922 4 Sheets-Sheet 4 llI!IlllillTlllllllllllIIHH NIH Patented Apr. 17, 1923.

JOSEPH L. WALKER, OF BATONV'ROUGE, LOUISIANAASSIG1\TOR vT0 THE;KVD. BARREL @a HAMEER CO., F BATON kROUGE,.11,0ll'ISIAlYlA.

MACHINE FOR MAKING .-BARRELH HEADS.

- Application-flied 4December 19,1922. SeralNo. 607,827.V

To all whom t may concern:

Be it 'known that-1,1 JosnPH-L. WALKER, afcitizen ofthe United States,,residingat Baton Rouge, in `the pari-sh ofEastlBaton 5 Rougeand State of Louisiana,yhave invented a new and useful Machine -for Making )Barrel: Heads, ofwhich the followingisaispeciication.

This invention relates `to machines for makingiharrel heads, .one of its obj'eetsbeing to provide meansy whereby blanks canv beffed automatically andin 4properly timedurclation tofa. cutting-imechanism, novel means being employed for 4grippingthe blank .dur-

ing the cutting operationtso as tohold'it against movement relatively to. the cutter.-

Anotherobject is :to :provide means for automatically directingL the blank against thefcutter and for ejecting it therefrom,

y thereby y'to allow unrestricted Imovement ot the formed vhead While being ejected subsequently I. to the formation thereof.

Another object is tovprovide a: cutter1 of novel construction the Aparts vof, which' are fastened together securely -Without :theuse of bolts or` similar asteningirneans.

A-stillfurther object is to providevalrotany cutter utilizing` an ordinary `saw blade. A A"further object is to provide a lifting meehanism off-novel construction VWherebjf blanks are directed into engagement With the saw.

Another. object isl to providen'a blank container adjustable to accommodate a stack-of blanks' of any desired size.

Afstilliurtherobject is toiprovide la 1nachinegof this characterxwhich isfent-irely Vaui tornatic andwhich, after `being supplied Witha quantity of blanks, can be set in 40 motion andy will successively shape the blanks and deliver them fromthe machine Without any attention onthe part ofthe .operator.

With the foregoing and other objects `in view which lwill appear` as Athe description proceeds, theinvention.l consists of certain novel details ot construction-*and combinations o parts,l Which will be Vhereinafter more fully' described and pointed out in the claims, it being understood/that various changesl may be made in they construction and anrangement `of- `parts Without departing from :the spirit of l the invention as claimed.l

Inl the accompanying drawings vthefpree'rred forin-l of "the 1 invention has been shown;`

In said drawings.

Figure l isa planviw of the machine, the belt .beingf indicated by ldotted lines.

Figure -2 is awvertical,longitudinalsection.

Figure '3 is` a horizontal sectionftaken di rectly :below fthey feedntable. of the machine.

Figure 4 is an enlarged section online 4-4 fFigu-re r1.1

Figu-reu is an enlarged section on line 5-5 Figure-2.v

Figure 6 is -a .vertical longitudinal` section through y af portionf of the' blank lifting mechanism and. showing by full and broken linestwo of thepositionswof part ofthe mechanism.

Figure 17' isa horizontal section through the saw, the` cutter-head being. shown in bottoiniplan, the section'v being on -line 7-7 Figure '8.

Figure-8-is an enlarged sectionon line 8-8 Figuref?.

FigureiQ- is. a plan view of a blank.

Referring; toly the `figures by characters `of referenced designates a suitably rconstructed supporting, structure on which is mounted a s feedmtable'iQprovided with a longitudinal dove-.tailedzgroover shaving `afslot #l in the bottom th'ereof.' A `feedblocli 5 is mounted to slide Within this groove and carries a crossnhead 4(S'Which rests on and sl'idably engages the table-2. Ararclrbar 'i' is provided on theilbottom otfthe feed block and constantlymesh'es with Va .gear Scarried by a shaft 9 supported in hangers l0.` A smaller gea-r11 yrotates With gear 8 and'meshes with a :rack barflQ'the-uppcr portion of which is dovetailed longitudinally as indicated at 13 and sli-des Withina guide rail 14, attached to the table -2 and'having a dove-tailed channel therein as shown'atl.

Adjustab-lymounted on the side portions or" thetableQ :are angle strips 16 having arms 17 extending laterally therefrom rand slidable Within ears 18 onfthe -table Set screws 19 or the like serve to hold the arms against movement but by loosening them the strips 16 can be shifted toward or from each other.

The arms 17 have tongues 20 projecting upwardly therefrom to which are secured the upstanding portions of the angle strips 16 and side walls 21. Secured to the inner sides of the walls 21 are angle strips 22 constituting abutments, the lower ends of these abutments being cut away as at 23 to provide suflicient clearance to allow a b-lank to be delivered longitudinally under the abut ments. Longitudinal slots 24 are formed in the walls 21 near their other ends and adjustably connected to these'slotted portions of the walls are angle strips 25, there being clampingbolts 26 extending through strips 25 and slots 24 forl holding the strips in any positions to which they may be moved. The walls 21 and the angle strips and 25 cooperate to form a stack holder which, obviously, is adjustable both inY width and length to accommodate stock of different dimensions.

`The supporting structure 1 is provided at one end with bearings 27 in'which is journaled a tubular shaft 28. A' collar 29 is carried by this shaft and normally rests on one of the bearings 27, thus to support the shaft. The shaft has a limited upward movement, however, limited by a collar 30 carried by the lower portion of the shaft. To this collar is detachably secured a hollow cylindrical cutter head V31. An abutment ring 32 is removably seated within the cutter head and is adapted to be engaged by one edge of a saw blade 33. The saw blade has teeth 34 on its other edge and is made of a flexible sheet of steel cut to proper length and adapted to be bent to circular form with its ends abutting as shown at 35. The blade isso proportioned that when it is formed into a circle it will lit snugly within the cutter head 31. A split holding ring 36 preferably formed of spring metal is adapted to be contracted and inserted into the cutter head and against the abutment ring. It is then allowed to expand and will bind tightly against blade 33 so as to hold it in frictional engagement with the inner surface of the cutter head. In Figure 8 the abutment ring32 has bee-n shown provided with an annular groove 37. lVhen the blade is first placed in the cutter head the abutment ring is located as shown in Figure 2 so that the inner edge of the blade will be seated in the groove 37. As the blade wears down through constant use, however, the ring 32 can be removed and reversed so as to be positioned as shown in Figure S. Thus the worn blade can be held projected a suf- .icient' "distancebeyond the cutter head to permit more continued use than would otherwise be possible.

Slidably mounted in the tubular shaft 28 is a plunger 38 to one end of which is secured a clamping disk 39 mounted to workk within the space surrounded by the blade 33. The other end of the plunger is pivot ally connected, as at 40, to opposed levers 41. Each lever is fulcrumed at one end on a pin carried by a bracket 42 while a weight 43 is mounted on the other end portion of each lever. The parts are so proportioned that when the weighted ends of the levers are in their lowermost positions thedisk 39 is supported with its lower face below the level of the teeth 34. It is to be understood that while the plunger38 and the clamping disk 39 are free to move upwardly and downwardly, they do not rotate with the shaft 28 or the cutter head 31.

Arranged within the structure 1 below the level of the table 2 is a guide bar 44 having a dove-tailed groove 45 extending longitudinally therein. This guide bar is integral with a standard 46 provided with oppose-d guideways 47 in which a shank 48 is mounted for slidinof movement. This shank has a clamping disk 49 at its upper end preferably of the same diameter as the disk 39 and normally supported with its upper face'flush with or slightly below the level of the top of table 2. A slot 50 is formed in the shank 48 and 1s so located as toreceive a dove-tailed slide 51 mounted for reciprocation within the groove 45. Mounted on this slide is a tapered lifting cam 52 also adapted to work within the slot 50. A latch 53 is pivotally connected to the shank 48 and hangs downwardly across the upper portion of the slot 50 and normally projects into the path of the cam block 52.

An arm 54 is extended from the slide 51 and has a rod 55 pivotally connected thereto and to the -rack bar 12. AV pitman 56 connects arm 54 to a crank arm- 57 extending from the shaft 58 of a worm gear 59 `and this gear meshes with-a worm 60 carried by the main or drive shaft 61 of the machine. The worm and its gear are preferably located in a. housing 62.

Shaft 61 is adapted to be driven by a belt not shown, a pulley 63 being provided therefor. Another pulley 64 is secured to this shaft and is adapted to transmit motion through a belt 65 to a pulley 66 secured to the tubular shaft 28, it being understood that idler pulleys 67 can be provided for the belt wherever desired. Y

"When the machine is set in motion the cutter head 31 will rotate at a high speed and the non-rotatable disks 39 and 49 will be spaced apart to receive a 4blank between them. l stack of blanks is placed on the table 2 in the container formed'by the walls' 21 and the angle strips 22 and 25. Each blank is preferably made up of crossed strips of wood fastened together and one of these i blanks i has been illustrated l in Il Figure y 9.

Motion willbe transmitted from-the main shaft 61 tliroughithe wormfgea'r-ingfto the two gears l1 and 8 to rotate. `Asfigear l8 is of greater diameter thanugear Vllthey rack 7 with feed block 5 and cross head 6 will be moved along table 2 at a greater speed than rack bar l2 and slide 5l. During the movement of slide 5l toward the left of Figure 2 the cross head 6 will engage the lowermost blank B of the stack mounted on the table and will slide the blank olf of table 2 and into the space between disks 39 and 49. While this action is taking place the large or advancing end of the cam block 52 will come against the depending latch 53 and move it from the full line position shown in Figure 2 to the dotted line position shown in Figure 6. After the blank has been deposited on the disk 49 the movement of the parts is reversed by the crank 57, and as the slide 5l moves to the right in Figure 2 the small tapered end of the cam block 52 will wedge under the latch 53 as shown by full lines in Figure 6. Thus during the completion of this movement of the slide the cam block will thrust upwardly against latch 53 and cause shank 48 and disk 49 to move upwardly and thereby clamp the blank B against the disk 39. Further upward movement of disk 49 will raise disk 39 against the action of the Weighted levers 41 and will bring the blank B against the rapidly rotating saw so as to cause the saw to cut the blank and produce a circular head. Immediately following the completion of this cut the cam block 52 will pass from under the latch 53, thereby allowing the latch, shank 48 and disk 49 to gravitate to their normal positions. At the same time the weighted levers 4l will thrust disk 39 downwardly to its normal position, thereby ejecting the formed head from the saw and bringing it into position where it will be ejected from the machine when another blank is fed to position between the disks.

By referring to Figure 6 of the drawing it will be noted that the lifting cam is tapered abruptly7 for a short distance near its small end and then gradually for the remainder of the distance. Thus when the cam is moved to the right in Figures 2 and t3 it will act first to quickly raise disk 49 to clamp the blank B and bring the bla-nk close to the saw teeth, and subsequently to gradually lift the disk 49 so as to force the blank slowly against the teeth of the saw.

Vhat is claimed is:

l. The combination with cutting means, of means for feeding a blank thereto including a slidable member, a lifting cam, means 'for sliding Othe cam back and forth, and

nmeans cooperating with the cam during the movement of the cam in one direct-ion, for

Asuccessively raising and releasing the slid-` able member, and, during the movement ol' j the cam 1n the opposite direction, for leaving' the slgidable member undisturbed.

y2. `The combination with a rotary cutter "headv and means thereon for cutting circular object, of normally spaced, relatively movable non-rotatable clamping members, a pivoted element movable with one of the members, a lifting cam engaging said ele ment, and means for reciprocating the cam relatively to said element to intermittently raise and release the clamping member movable with said element.

3. The combination with cutting means, of means for feeding a blank thereto including a non-rotatable slida-ble member, a lifting cam mounted for reciprocation, and piv` oted means movable with said member and cooperating with the cam to intermittently raise and release the member during the reciprocation of the cam.

4. The combination with a cutter head. and normally spaced non-rotatable clamping means slidable relatively to the cutter head, of reciprocating means movable in one direction to successively raise the clamping means to grip a blank therebetween, feed the blank to the cutter head, and remove the blank from the cutter head, and movable in the op* posite direction while the clamping means is stationary.

5. rlhe combination with a cutter head and normally spaced blank gripping means adjacent thereto, of a feed table, a feed member slidably mounted on the table for ejecting a blank from a stack of blanks to position said blank between the gripping means. a rack bar movable with the feed member, a drive rack bar slidably mounted, means for transmitting motion from one rack bar to the other to move one of the bars at a greater speed than the other bar, and .means for actuating the drive rack bar.

6. The combination with a cutter head and normally spaced blank gripping means adjacent thereto, of a feed table, a feed member movable thereon for ejecting a blank from a stack of blanks to position said blank between the gripping means, a rack bar movable with the feed member, a drive rack bar, speed increasing means for transmitting motion from the drive rack bar to the bar of the feed member, means for actuating the drive rack bar, and means operating in properly timed relation with the rack bars for gripping' a blank between the gripping members and feeding it to the cutter head.

T. The combination with a cutter head and normally spaced blank gripping means adjacent thereto, of a feed table, a feed member movable thereon for eject-ing a blank from 10 cam, and speed increasing means actuated by the movement of the cam for driving the feed member.

In testimony that I claim the foregoing as my own, I have hereto aiXed my signature in the presence of two witnesses.

JOSEPH L. WALKER.

l/Vitnesses GLD. ALEXES, T. JONES CRoss. 

